Keywords
Integrated pest management
Genetic mechanisms
Ecotoxicology
Cross-resistance
Economic injury threshold
Pest selection
How to Cite
Abstract
Written by a PhD in Ecotoxicology, professor at the Universidad Nacional de Colombia, Medellín campus, this article analyzes the genetic mechanisms by which pest populations develop resistance to pesticides. The author explains how pesticide application acts as a selective agent favoring the prevalence of resistant individuals, describing the factors that accelerate this process. The text presents the concept of economic injury threshold and develops the Integrated Pest Management strategy, further explaining the phenomenon of cross-resistance, whereby a single protein modification can confer simultaneous resistance to several classes of pesticides.
References
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UU. 2. GOULD, F., 1991. The evolutionary potential for crop pest. American Scientific 79: 496-507. 3. Insecticide Resistance Action Committee (Irac) http://www.irac-online.org/; Última consulta: Nov 2006.
ROSENHEIM, J.A., and TABASHNIK, B.E., 1990. Evolution of pesticide resistance: interactions between generation time and genetic, ecological, and operational factors. Journal of ecological entomology 83:1184-1193. 5, NATIONAL RESEARCH COUNCIL, Ecologically Based Pest Management: New Solutions for a New Century. 1996. Committee on Pest and Pathogen Control Through Management of Biological Control Agents and Enhanced Cycles and Natural Processes, National Research. Council, 161p., National Academy Press. Washington D.C., EE.
UU. 6. BROGDON, W.G., and MCALLISTER, J.C., 1998. Insecticide Resistance and Vector Control. Emerging Infectious Diseases 4 (4), 605-613
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Copyright (c) 2006 Sebastián Reynaldy